PNP: make generic pnp_add_dma_resource()

[linux-2.6-omap-h63xx.git] / drivers / pnp / resource.c

diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 082a556b9dcc797ab32e3d9000dd8dc3de94915b..2a8612e31ab75933e5b3347b5b3a0275fbd22234 100644 (file)
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -602,6 +602,32 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
        return pnp_res;
 }
 
+struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
+                                         int flags)
+{
+       struct pnp_resource *pnp_res;
+       struct resource *res;
+       static unsigned char warned;
+
+       pnp_res = pnp_new_resource(dev, IORESOURCE_DMA);
+       if (!pnp_res) {
+               if (!warned) {
+                       dev_err(&dev->dev, "can't add resource for DMA %d\n",
+                               dma);
+                       warned = 1;
+               }
+               return NULL;
+       }
+
+       res = &pnp_res->res;
+       res->flags = IORESOURCE_DMA | flags;
+       res->start = dma;
+       res->end = dma;
+
+       dev_dbg(&dev->dev, "  add dma %d flags %#x\n", dma, flags);
+       return pnp_res;
+}
+
 /* format is: pnp_reserve_irq=irq1[,irq2] .... */
 static int __init pnp_setup_reserve_irq(char *str)
 {